View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.UNILOY 13-8 has high strength, ductility and toughness in large cross sections in both longitudinal and transverse directions. The alloy has excellent mechanical property uniformity; this is the result of a well-balanced chemical composition. Because of its excellent general corrosion resistance (nearly equal to AISI Type 304 stainless steel) and its high degree of resistance to stress-corrosion cracking, it is used in a variety of environments. Typical uses are aircraft structural components, shafts, valve parts and fittings.